Samba share on htdocs, getting permissions error on write

Question

I've installed SAMBA on my ubuntu 10 server along with XAMPP. I'm trying to create a share to be able to easily manage files from my windows box. Unfortunately, I'm running into a write error. I can browse the share/folder just fine. I can read all the files... but I can't create any new files (or save changes to existing ones).

smbd.conf

[global]
        map to guest = Bad User
        hosts allow = 127.0.0.1, 192.168.1.200
        hosts deny = 0.0.0.0/0

[intranet$]
        comment = intranet share
        path = /opt/lampp/htdocs
        read only = No
        create mask = 0755
        browseable = No
        browsable = No

The main problem now, I think, is that I think my permissions for htdocs are not correct for SAMBA to be able to write to the directory.

drwxr-xr-x  4 nobody root  4096 2009-08-27 04:36 htdocs

What do I need to do to get this working (and make sure I don't screw up the permissions for Apache/PHP?